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Cairo, Egypt

Elazab S.,Nahda University | Alazab M.,Higher Technological Institute
Proceedings - 2015 5th International Conference on e-Learning, ECONF 2015 | Year: 2015

Recent communication and information technology have unlocked entirely new directions for education and training. Mounting pressure from increasing free, online course offerings is opening discussion and catalyzing change in the physical classroom. The flipped classroom is at the center of this arena. The flipped classroom is a new pedagogical method, which employs asynchronous video lectures and practice problems as homework, and active, group-based problem solving activities in the classroom. It represents a unique combination of learning theories once thought to be incompatible-active, problem-based learning activities founded upon a constructivist ideology and instructional lectures derived from direct instruction methods founded upon behaviorist principles. This paper provides a comprehensive survey of prior and ongoing research of the flipped classroom and introduces a case study for higher education and the perception of the both students and instructors. Studies are characterized on the type of in-class and out-of-class activities, On the other hand, we introduce some notes to help faculties to smoothly transform from traditional classroom to flipped classroom. © 2015 IEEE. Source


The fabrication and the performance response characteristics of a sensitive, selective, simple, and rapid sensor for the determination of clopidogrel bisulfate (CLO-H2SO4) were described. The constructed carbon paste sensor comprised of an ion-pair based on clopidogrel with silicotungstate (CLO-ST) where this study included: composition, usable pH range, response time and temperature. The sensor exhibited a wide linear dynamic concentration ranging from 1.00×10-7 to 1.00×10-2 and the usable pH ranges from 1.2 to 4.8 with the response time ranging from 5 to 8s which is much faster compared to liquid ISEs with a detection limit equalling 0.34nM. The selectivity of the sensor (CLO-H2SO4) was applied with respect to many of organic and inorganic cations, amino acids and sugars. The sensor had applications in bulk powder, tablets, humans (serum-urine) and in monitoring Plavix tablets' dissolution rates. The obtained results were statistically analyzed for both accuracy and precision and were compared using the US pharmacopeial method where no significant difference was observed. © 2014 King Saud University. Source


Radwan A.A.,Minia University | El-Bakry H.M.,Mansoura University | El Hadad H.M.,Nahda University
Recent Researches in Applied Informatics - Proceedings of the 2nd International Conference on Applied Informatics and Computing Theory, AICT'11 | Year: 2011

The successful application of data mining in highly visible fields like e-business and marketing have led to the popularity of its use in knowledge discovery in databases (KDD) in other industries and sectors. Among these sectors that are just discovering data mining are the fields of medicine and public health. The medical industries collect huge amounts of healthcare data which, unfortunately, are not "mined" to discover hidden information. We can describe this data as being 'information rich' yet 'knowledge poor'. In this study, we briefly examine the use of the most important data mining techniques such as Artificial Neural Network to massive volume of data in medical field which is pediatric respiratory disease. Using medical symptoms such as dry cough, productive cough, fever, heamoptysis, tachypnea, dysnea and etc. Also using doctor sign such as bronchial breathing, chest pain, clubbing of finger, crepitation, ronchi, cyanosis, decrease brearthing sound on auscultation, dullness on percussion, hyper resonant on percussion, inability to swallow, mucopurelent sputum, pleural rub, respiratory distress, sputum (white), stridor, upper respiratory infection, wheezing, X-ray [showing lung consolidation], X-ray [shawing edematous epiglottic], X-ray [shawing subglottic narrowing and classic narrow trachea], X-ray [showing hypertanslucent lung], X-ray [showing lobar collapse and (increase) bronchovascular marking], X-ray [showing diffuse haziness], it can predict the likelihood of patients getting a respiratory disease. They enable significant knowledge, e.g. patterns, relationships between medical factors related to respiratory disease, to be established. Source


El-Sherbiny G.M.,October 6 University | el Sherbiny E.T.,Nahda University
Iranian Red Crescent Medical Journal | Year: 2011

Background: Trichomoniasis vaginalis is now an important worldwide health problem. Metronidazole has so far been used in treatment, but the metronidazole-resistant strains and unpleasant adverse effects have been developed. Myrrh is one of the oldest known medicinal plants used by the ancient Egyptians for medical purposes and for mummification. Commiphora molmol (Myrrh) proved safe for male reproductive organ which is the main habitat of T. vaginalis and this study aims to evaluate the efficacy of the herbal against T. vaginalis in females. Methods: In the present study, 33 metronidazole-resistant T. vaginalis females were treated with a combined course of metronidazole and tinidazole. Those still resistant to the combined treatment were given C. molmol. Also, natural plant extract purified from pomegranate (Punica granatum, Roman) was in-vitro investigated for its efficacy against T. vaginalis on Diamond media. Results: The anti-T. vaginalis activity of both P. granatum (in-vitro) and C. molmol (in-vivo) extracts gave promising results. Conclusion: The anti-T. vaginalis activity of P. granatum and C. molmol showed promising results indicating to sources of new anti-Ttrichomonas agents. © Iranian Red Crescent Medical Journal. Source


Anodic oxidation of Co, Cu, Zn, and Sn metals in an anhydrous acetone solution of 1,1-oxalyl-, malonyl- or succinyl-bis(4-p- chlorophenylthiosemicarbazide) yields a new polynuclear complexes. The isolated complexes have the general composition [M 2(L)(H 2O) 6], L = pClSuTS and M = Co(II), Cu(II) or Sn(II), [M 2(L)(H 2O) n]·nH 2O where M = Cu(II), Co(II) or Sn(II), L = pClOxTS and n = 2 or 6, and [M 2(L)(ac) 2]·nH 2O where M = Co(II) or Zn(II), L = pClOxTS or pClSuTS and n = 2. The thermogravimetry (TG) and derivative thermogravimetry (DTG) have been used to study the thermal decomposition of the investigated bisthiosemicarbazide ligands and their metal complexes. The kinetic thermodynamic parameters such as: E, ΔH, ΔS and ΔG are calculated using Horowitz-Metzger (HM) and Coats-Redfern (CR) equations. The kinetic thermodynamic parameters such as: E, ΔH, ΔSand ΔG are calculated from the DTG curves. The tested compounds show a reasonable activity against four strains of Gram-negative bacteria; Escherichia coli, Pseudomonas aeruginosa species and Gram-positive bacteria; Bacillus cereus and Staphylococcus aureus. © 2011 Elsevier B.V. All rights reserved. Source

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